Green tea contains a catechin called epigallocatechin-3-gallate (EGCG). Catechins are natural antioxidants that help prevent cell damage and provide other benefits. These substances can reduce the formation of free radicals in the body, protecting cells and molecules from damage.
Is green tea scientifically proven?
Green tea has been shown to improve blood flow and lower cholesterol. A 2013 review of many studies found green tea helped prevent a range of heart-related issues, from high blood pressure to congestive heart failure. What's good for the heart is usually good for the brain; your brain needs healthy blood vessels, too.
What do doctors say about green tea?
There is moderately strong evidence that regular green tea drinkers have lower rates of several cancers—particularly cancer of the colon, prostate, breast, lung, and skin.
Is green tea scientifically proven for weight loss?
Green tea may be beneficial for weight loss by helping the body's metabolism to be more efficient. Green tea contains caffeine and a type of flavonoid called catechin, which is an antioxidant. Research suggests that both of these compounds can speed up metabolism.
What does science say about tea?
Observational research has found that tea consumption of 2-3 cups daily is associated with a reduced risk of premature death, heart disease, stroke, and type 2 diabetes. [2] However, there may be an increased risk of esophageal and stomach cancers from drinking tea that is too hot (more than 131-140° F [55-60° C]).
Is green tea harmful?
Drinking green tea in very high amounts can cause headache, nervousness, sleep problems, vomit, diarrhea, irregular heartbeats, dizziness, and convulsions and can be dangerous and even fatal.
What are the disadvantages of green tea?
It can cause side effects because of the caffeine. These side effects can range from mild to serious and include headache, nervousness, sleep problems, vomiting, diarrhea, irritability, irregular heartbeat, tremor, heartburn, dizziness, ringing in the ears, convulsions, and confusion.
Who should not drink green tea?
Precautions. Pregnant and breastfeeding women, children under the age of 2 and people with kidney disorders, heart conditions, stomach ulcers and psychological problems should also avoid taking green tea. People with glaucoma, anemia, liver disease, osteoporosis and diabetes should also avoid it.
Can green tea reduce belly fat?
Many studies have demonstrated that drinking green tea can help people shed the pounds and melt away the unhealthy belly fat effectively. Green tea is packed full of nutrients and antioxidants that may increase fat burning, help you lose weight, and boost health in many different ways.
What happens if I drink green tea everyday?
Green tea is packed full of health-promoting compounds. Regularly drinking green tea can help you lose weight and reduce your risk of several diseases, including diabetes, heart disease and cancer. Drinking three to five cups of green tea per day seems to be optimal to reap the most health benefits.